HD64F3028F25 Datasheet, PDF (484/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

13.1.3 Input/Output Pins
The SCI has serial pins for each channel as listed in table 13.1.
Table 13.1 SCI Pins
Channel
0
1
2
Name
Serial clock pin
Receive data pin
Transmit data pin
Serial clock pin
Receive data pin
Transmit data pin
Serial clock pin
Receive data pin
Transmit data pin
Abbreviation
SCK0
RxD0
TxD0
SCK1
RxD1
TxD1
SCK2
RxD2
TxD2
I/O
Input/output
Input
Output
Input/output
Input
Output
Input/output
Input
Output
Function
SCI0 clock input/output
SCI0 receive data input
SCI0 transmit data output
SCI1 clock input/output
SCI1 receive data input
SCI1 transmit data output
SCI2 clock input/output
SCI2 receive data input
SCI2 transmit data output
Rev. 2.00, 09/03, page 452 of 890